baber/WOPTO huggingface dataset:
Patent GB-501397-A (GB)
Title: Improvements in or relating to electrical musical instruments
IPC: G10H1/057
Filed: 1937-07-22
Abstract: 501,397. Electrical musical instruments. COMPTON ORGAN CO., Ltd., J., and BOURN, L. E. A. July 22, 1937, No. 3746/39. Divided out of 501,339. [Class 88 (ii)] In a musical instrument in which individual partials of notes are produced electrically, a tone generator with a plurality of supply circuits has some circuits arranged to give die-away (as required for producing the effects of chimes, vibraphone, celesta, glockenspiel, &c.), and others not. The invention is described as applied to electrostatic instruments such as are described in Specifications 403,444 and 433,050, where each key controls a set of contacts, which contacts are connected to the appropriate ring electrodes providing the partials of the note and engage bus-bars energized under the control of stops. Separate manuals are preferably employed, as shown in Fig. 1, although the same manual with a stop control may be used. The key contacts 7 of the normal keyboard (i.e. without die-away) contact with bus-bars 6 under the control of stop resistances 11, leak resistances 12 and resistances 13, 14, resistance 14 being under swell-pedal control. Closure of a key-contact 7a on the die-away manual causes substantially instant charging of a condenser c<1> (without therefore delaying attack), and on its release the condenser discharges slowly through resistance l<3> giving the gradual die-away. Resistance 16 is controlled by a swell pedal. The condenser c<1> is ineffective to produce a substantially audible die-away when the contacts 7 only are operated. Complete isolation may be obtained with the use of rectifiers. Condenser c controls attack in all the supply circuits. A plurality of partial bus-bars may be used with the chimes contacts 7a if harmonics are desired. Specifications 501,339, (in the Provisional Specification) 453,846, and 499,330 also are referred to.
Patent GB-424030-A (GB)
Title: Improvements in or relating to knitted fabrics
IPC: D04B1/02
Filed: 1934-02-06
Abstract: 424,030. Knitting. COOPER, H. J., 31, Eastern Circle, Burnage Estate, Manchester. Feb. 6, 1934, No. 3822. Drawings to Specification. [Class 74 (ii)] A backing yarn or yarns is laid in at every third needle of a circular knitting-machine with bearded needles when making a pile fabric to prevent shortening of the pile loops when the fabric is in use. Specification 352,396 is referred to.
Patent GB-832743-A (GB)
Title: Improvements in and relating to the control of movable parts
IPC: B62D1/26
Filed: 1957-02-04
Abstract: 832,743. Steering vehicles. COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN. Feb. 4, 1957 [Feb. 3, 1956], No. 3843/57. Class 79(5) [Also in Group XXX] In a road vehicle having a steering control member 1, Fig. 1, movable into or out of operative engagement with a fixed guide track 8, a latch 5 for holding the control member 1 in its inoperative position is automatically released while the vehicle is travelling by means projecting from the vehicle which engages an actuating member fixed at a required location along the track. In one example the control member 1 is supported by a lever 2 pivoted to a cross pin 10 on fork 3 depending from the vehicle. The lever 2 is retained in the inoperative position by the engagement of its end 9 under a step 53 of a latch 5 which is yieldably held by a spring 7 to engage the end 9 when the control member 1 is automatically raised by a ramp 14 (not shown) at the end of the track 8. The latch 5 is mounted on a transverse shaft 6 rotatable in bearings 4 on the vehicle chassis 50 and carrying a crank arm 11 engageable with a fixed ramp 12 which is placed at the required position along the track to release the latch 5 when the control member is required to be lowered. In a modification the raising of the lever 2 and release of the latch 5 may be controlled by ramps 18, Fig. 3, above the roof 56 of the vehicle and engaging rollers 17, 23 on push rods 13, 16 moving in guides 19, 21 on the roof 56. The rods 13, 16 may be yieldable to permit large movements of the rollers 17, 23 required to accommodate varying heights of vehicles. Specifications 832,741 and 832,742 are referred to.
Patent GB-760474-A (GB)
Title: Process of producing perchloroindan
IPC: C07C23/34
Filed: 1953-02-11
Abstract: Perchlorindan is prepared by reacting in the molten condition resin-free octachloro-naphthalene and/or resin-free octachloro-naphthalene-1,4-dichloride with chlorine in the presence of ferric chloride at temperatures up to about 250 DEG  C. The reaction comprises a cleavage reaction yielding carbon tetrachloride and perchlorindene and preferably when production of the carbon tetrachloride has ceased, the reaction temperature is maintained below 200 DEG  C. while continuing the chlorination until the perchlorindene present has disappeared.  The resin-free starting materials may be prepared by chlorinating naphthalene in the absence of ferric chloride or other FriedelCrafts catalyst; the 1:4-dichloride compound however may be formed by chlorinating naphthalene in sulphuryl chloride with chlorine and ferric chloride at 50-60 DEG  C.  In examples: (1) naphthalene is chlorinated using antimony pentachloride as catalyst to the stage at which a test portion dissolves in chlorsulphonic acid with intensive violet coloration; iron powder is then added to the product which is a mixture of octachloro-naphthalene and the 1,4-dichloride derivative and then chlorination is continued, at 190-200 DEG  C. during evolution of CCl4 and thereafter at 140-150 DEG  C., yielding substantially pure perchlorindan; (2) distilled octachloro-naphthalene or octachloro-naphthalene 1:4-dichloride is admixed with iron powder and then chlorinated as in (1).
Patent GB-556276-A (GB)
Title: Improvements in diamond-holding tool
IPC: B24B53/12
Filed: 1942-03-24
Abstract: 556,276. Diamond tools. DINHOFER, J. March 24, 1942, No. 3898. [Class 124] In a diamond tool an octahedral diamond is releasably secured in a holder by a clamping member with portions defining a substantially square opening. In the form shown in Figs. 1 and 3, the octahedral diamond 6 rests on a holder 1 having a square opening 3, inclined surfaces 4, radial slots 7, and a conical outer surface 15 for engagement with a corresponding surface 14 on a clamping member 10 with a square opening 12, inclined edges 13, and radial slots 16 aligned with the slots 7. The clamping member 10 has slots 18 engaged by pins 19 on the holder 1, and a flange 20 engaged by an adjusting ring 22. In the form shown in Figs. 7 and 8, the clamping member is formed by four jaws 33 notched at 34 to engage the girdle 39 of the diamond, and held in gripping position by a ring 35.
Patent GB-121048-A (GB)
Title: Improvements in or relating to Valves for Internal Combustion Engines.
Inventor: WIGELIUS SVEN GUSTAF
IPC: F01L9/10
Filed: 1918-03-06
Abstract: 121,048. Wigelius, S. G., and Uhr, N. W. March 6, 1918. Valve-gear.-Hydraulically-operated internalcombustion engine valves are locked in their limit positions by trapped liquid, the action being controlled by auxiliary slide valves operated by the main liquid pressure. The main valve d is secured to a sleeve f controlled by a spring p in the valve casing c. Within the sleeve f is a slide valve o pressed against a stop-ring 12 by a spring l surrounding a stop-pin k. In the position shown, liquid is trapped in a chamber u by a ring v on the sleeve f engaging the reduced end 7 of the chamber u, and by the end n of the valve o covering holes 9 in the sleeve f. To open the main valve, liquid under pressure is introduced to the chamber a and presses down the valve o slightly so as to release the trapped liquid through the holes 9 and to trap liquid in chambers 18, 20 in the parts f, o respectively, which parts are thus locked together and move downwards until the increasing resistance of the spring p permits the valve o to overrun the sleeve f slightly and bring the body of the valve into engagement with the ring v, which by this time has reached the other reduced end 24 of the casing u. The relative motion of the valve o is limited by the stop-pin k. Liquid is thus once more trapped in the chamber u, and the valve d is locked in its open position. For return of the valve d, pressure in the chamber a is reduced, and the valve o rises slightly and releases the liquid in the chamber u, liquid being trapped in the chambers 17, 19 in the sleeve f and valve o to secure simultaneous rise of the two valves, the valve o again overrunning the sleeve f to lock the valve d in the position shown.
Patent GB-293660-A (GB)
Title: Improvements in and relating to speed gear mechanism for cycles
IPC: B62M25/00
Filed: 1928-02-08
Abstract: 293,660. James Cycle Co., Ltd., and Kimberley, F. A. Feb. 8, 1928. Variable-speed epicyclic gearing for cycles yielding two speeds of the kind described in Specification 23231/04 is modified by the provision of a cam extension 15 of the clutch pawl 10 off-set into the plane of the control plunder 17. The internally-toothed ring 1 is fast on the crank axle 12. Planet-gears 4 are carried by a disc 4b secured to the driven sprocket 5. The loose sun gear 6 is integral with a plate 7 to which the pawl 10 is pivoted at x, Fig. 1. In the plate 7 is an aperture 14 through which the joggled pawl 10 passes. Normally, plunger 17 is held up out of the way, and a spring 16 thrusts pawl 10 outwards so that a nose 22 upon it engages ratchet teeth 9 on the sprocket. The gearing turns solid yielding the high speed. To bring in the low speed, the spring plunger 17 is released so as to' become engaged by the advancing cam end 15 of the pawl. The pawl is disengaged from teeth 9 and the plate 7 turns until it is stopped by an abutment 15a upon it striking the spring- depressed plunger end 17. The planets 4 then roll on the fixed sun 6.
Patent GB-227006-A (GB)
Title: Improved method and apparatus for cleaning spinning devices for the manufacture of artificial threads
IPC: D01D4/04
Filed: 1924-02-15
Abstract: 227,006. Marks, E. C. R., (Bemberg, Akt.-Ges., J. P.). Feb. 15, 1924. Apparatus for making filaments.- Deposits that form on the walls of the funnel in which artificial silk &c. filaments are spun from copper - oxide - ammonia cellulose solutions and which impede the passage of the filaments, are removed by introducing from time to time a fluid that dissolves the deposits, into the precipitating-funnel or into the tapered outlet of the latter; suitable cleaning fluid is dilute acid, for instance, 10 per cent sulphuric acid. Thus, the precipitating-vessel T supplied with precipitating-fluid through a pipe s connected to a tank w, is provided with a pipe a, Fig. 1, through which cleaning-fluid is supplied from a tank b under the control of a cock h; alternatively a cock may be dispensed with and the vessel b connected by a length of flexible tubing so that it can be raised to produce a flow of liquid when the deposits are to be removed; or it may be placed permanently at a lower level and cleaning-fluid be added to it from time to time; or the pipe for the cleaning-fluid may be connected directly to the pipe s for the precipitating-fluid, for example, as shown in Fig. 5, in which case the liquid rises and flows over the edge of the inner funnel e.
Patent GB-175623-A (GB)
Title: A process of drying pressed yeast
IPC: C12N1/04
Filed: 1922-02-10
Abstract: 175,623. KIein, E. Feb. 15, 1921, [Convention date]. Treating with special materials,-Starch, phosphates, sodium bicarbonate, maltose, dextrine, sugar, &c., are added together or successively, or any one of them is added alone, during the drying of yeast. Water absorbing substances may be added when the yeast has been dried to a water content of about 60 per cent, substances which stimulate the formation of enzymes, such as sugar, and those such as salt which accelerate the the escape of water from the cells may be added when the water content is reduced to or below 40 per cent.
Patent GB-871607-A (GB)
Title: Apparatus for the electrical measurement of periodically varying test forces used in the testing of materials
IPC: G01N3/06
Filed: 1959-02-05
Abstract: 871,607. Electric signalling systems. MASCHINENFABRIK AUGSBURG-NURNBERG A.G. Feb. 5, 1959 [Feb. 7, 1958], No. 4074/59. Class 40 (1).  In a system for the measurement of cyclically varying test forces in which the force produced by rotating an eccentrically mounted disc 2 is sensed by bridge-connected resistance strain gauges 6, 7, 8 and 9, the output voltage of the bridge being compared with that of a second bridge formed by a potentiometer 18 and a centre-tapped resistor 15, and the difference in the output voltages being used to energize motor 26 to drive the second bridge into correspondence with the first, the comparison is made via switch 29 which is driven at the same speed as disc 2 and is closed for only a short time during each cycle of variation of the test force. The sample value is stored for the remainder of the cycle on capacitor 42. The contacts of the switch may be moved relatively to the rotor in order to sample different parts of the cycle so as to search for maximum values of the test force or to record the entire cycle of variation.
Patent GB-562155-A (GB)
Title: Improvements in or relating to a steam-air heat-power plant
IPC: F01K23/10
Filed: 1943-03-12
Abstract: 562,155. Feedwater heating systems. MASCHINENFABRIK OERLIKON. March 12, 1943, No. 4088. Convention date, March 19, 1942. [Class 64 (i)] [Also in Group XXVI] 'A plant incorporating separate steam and compressed air turbines 6, 13, and air and feed-water preheaters, 12 and 10<2> respectively, has an amount of air supplied to a furnace 3 which is greater than that required for combustion. Steam in a pipe 5 supplies the turbine 6, and passes through a condenser 7, pump 8, preheaters 101 and 10<2> to a boiler 1 and superheater 4. A compressor 14 driven by the air turbine 13 supplies air to the pre-heater'12 and turbine 13, the exhaust air passing through the feed-water heater 10<1>. Useful output machines 9 and 15 are driven by the turbines. The excess heat of the exhaust air from the turbine can be used for further heating purposes. The steam superheater and the air heater may be installed in different ways. The air heater can be installed in front of the steam superheater or in parallel with it, or may be placed alongside the boiler. In the Specification as open to inspection under Sect. 91 two fire-grates 3' and 3<2> are used in the furnace and the turbine 6 operates with a back pressure. Two air turbines 13<1>and 13<2> with intermediate re-heating are included in place of the turbine 13. The turbines may be on separate shafts. Air may circulate through the air turbine system, on a closed circuit. This subject-matter does not appear in the Specification as accepted.
Patent GB-1013452-A (GB)
Title: Transistor amplifier of variable gain
IPC: H04N5/52
Filed: 1963-02-01
Abstract: 1,013,452. Variable-gain transistor amplifiers. FERNSEH G.m.b.H. Feb. 1, 1963 [Feb. 3, 1962], No. 4192/63. Heading H3T. A variable-gain transistor amplifier comprises two transistors of opposite conductivity types having their collectors connected directly together and to an output terminal and having their emitters connected by respective resistors to the opposite poles of a D.C. source, together with means for applying a signal to be amplified in parallel to the bases of the transistors by means permitting the bases to be maintained at different D.C. voltages, a circuit of variable D.C. resistance being connected between the emitters. In Fig. 1, the emitter resistors 10, 11 are decoupled by capacitors 12, 13 and the bases are fed from a potentiometer chain 6, 7, 8. The resistive network 14, 15 may be replaced by a transistor of either conductivity type with series resistors (Figs. 2-6, not shown), and may be directly or capacitatively coupled to a grounded-base amplifier (Figs. 7-9, not shown). Two such circuits can be used for cross-fading of video signals.
Patent GB-104911-A (GB)
Title: Improvements relating to Shields for Personal Wear.
Inventor: BEEDLE WILLIAM
IPC: F41H1/00
Filed: 1916-03-21
Abstract: 104,911. Beedle, W. March 21, 1916. Body armour.--A shield, which may be worn under a tunic, consists of a number of metal plates, such as a, a, b, b, of a general form corresponding to that of the front or back uf the body, which plates overlap on their vertical and horizontal edges and are connected by laces g passing through coincident holes in their overlapping edges, so as to allow of slight movements between the adjoining plates. A single curved metal plate h or apron is connected to the front lower edge of the main shield by laces i or by buttons or loose rivets. The shield may be supported by shoulder straps connected to the shield at k. The plates may be lined with fabric. Provisional Specification 4197/16 states that all the plates may be connected by rivets, hooks, or other similar connexions, and that they may be enclosed in casings or pockets.
Patent GB-101758-A (GB)
Title: Improvements relating to Vehicle Wheels.
Inventor: LOWDEN JAMES WALTER
IPC: B60B7/00
Filed: 1916-03-22
Abstract: 101,758. Lowden, J. W. March 22, 1916. Disk-wheels with non-supporting casings enclosing spokes.-A conical coverplate forming a non-supporting casing enclosing the spokes is made by cutting from a circular sheet n of metal or other material a segment o with a slot p at or near the apex of the segmental gap. The edges of the gap are drawn together and interlocked. Several methods for attachment of cover-plates to wheels are described.
Patent GB-784037-A (GB)
Title: Improvements in polyethylene and articles made therefrom
IPC: B29C35/08
Filed: 1956-02-10
Abstract: The stress cracking characteristics of polyethylene of viscosity average molecular weight above 16,000 are improved by irradiating it with high-energy radiation, preferably high-energy electrons, within the irradiation dose range of from 1 to 2.5 X 106 R.ALSO:The stress cracking characteristics of polyethylene of viscosity average molecular weight above 16,000 are improved by irradiating it with high energy radiation, preferably high energy electrons, within the irradiation dose range of from 1 to 2.5 X 106 R.
Patent GB-1037135-A (GB)
Title: Improvements in and relating to kitchen furniture such as sink units
IPC: B65F1/14
Filed: 1964-01-31
Abstract: 1,037,135. Refuse receptacles. E. W. CARDY. Jan. 15, 1965 [Jan. 31, 1964], No. 4277/64. A detachable receptacle 6 for kitchen waste is carried on the inside of a panel 3, hinged in an aperture in a hinged access door of a sink unit &c., for movement between a position flush with the door and the inclined position shown which is determined by the abutment of a flange 4 with the inside of the door and in which the receptacle is removed for emptying. A projection 7 forms a lid for the receptacle and may form a stop determining the flush position of the panel, the centre of gravity of the moving parts moving across the hinge axis of the panel to urge to limit positions.
Patent GB-913973-A (GB)
Title: Improvements in or relating to burglar and like alarms
IPC: G08B13/22
Filed: 1959-12-16
Abstract: 913,973. Burglar alarms. GILSON, T. L. Dec. 14, 1960 [Dec. 16, 1959], No. 42831/59. Class 118. On a base-board or chassis 11, adapted to be attached to a wall or the like, are mounted a battery 12, a bell or buzzer 13, a pair of busbars 16, 17, each having a series of terminals along its length, and electrical connections connecting one terminal of the battery 12 via the bell or buzzer 13 to one bus-bar 16 and the other terminal of the battery to the other bus-bar 17; a warning lamp 20, which may be of the winking kind, is mounted on a portable base 21 and is connected in parallel with the bell or buzzer 13 by means of a pair of terminals on the base-board 11, and each of a plurality of normally-closed switches 19 is arranged to be held open by a closed door, window, or the like and is connected to a pair of terminals on the bus-bars 16, 17, so that closure of any one of the switches 19 completes the circuit for the bell or buzzer 13 and the lamp 20. An on/off switch 15 may be provided, and the switches 19 may be of the spring- loaded push-button kind.
Patent GB-1247001-A (GB)
Title: Improvements in or relating to printing
Inventor: BRADSHOW ARTHUR
IPC: B41M1/34
Filed: 1968-01-27
Abstract: 1,247,001. Printing apparatus. SERVICE (ENGS.) Ltd. 27 Jan., 1969 [27 Jan., 1968], No. 4376/68. Heading B6C. Articles printed with successive colours are dusted between printing operations so that an impression produced in one operation will not be damaged in second or subsequent operations. Preferably the articles are of ceramic ware and receive offset impressions from a series of offset pads. The offset pads may receive impressions from intaglio or relief plates, may be pressed against an inked plate or belt through an apertured template, or may pick up impressions from metal plates printed on by screen printing. The inks used may be made up of pigments in polymerizable media, and may be dusted with powders which disappear or become unnoticeable during firing of the ware, such as starch, methyl cellulose, ethyl cellulose, hydrated ethyl cellulose, cellulose acetate butyrate and graphite. Alternatively powders which remain in relief may be used, such as French chalk, hydrated alumina, plaster of Paris and polyethylene. The dusting powder may be applied by sprinkling, brushing or by spraying from an air nozzle, suitably as a dispersion in a fastdrying liquid. Excess powder may be removed by an air blast.
Patent GB-1358204-A (GB)
Title: Polyacrylate elastomer compositions
IPC: C08L33/08
Filed: 1972-01-31
Abstract: 1358204 Elastomeric polyacrylate compositions AMERICAN CYANAMID CO 31 Jan 1972 [1 March 1971] 4434/72 Headings C3G and C3P Vulcanizable elastomeric compositions are prepared by copolymerizing a major proportion of (1) at least one lower alkyl acrylic acid ester monomer with a minor proportion of (2) at monomer containing a halogen or epoxy group, in the presence of 0À25-10 wt. per cent, based on total monomer, of an unsaturated polymer in which at least 75% of the original saturation is still retained and which has a M.W. in the range 500-4000. Conventional polymerization techniques and catalysts are used. In examples, the unsaturated polymer is liquid hydroxy- or arylterminated polybutadiene, and the following monomers are used: (Monomer 1) ethyl acrylate, ethyl acrylate/butyl acrylate, ethyl acrylate/ methoxyethyl acrylate, and ternary mixtures of ethyl and butyl acrylates with methoxymethyl- or ethoxyethylacrylate; and (Monomer 2) vinyl chloroacetate.